JBL PRX418S Compact 18" Passive Subwoofer Power rating: 800W for continuous, 1600W for program, and 3200W for peak sound Extensive frequency range of 35-250 Hz and frequency response of 52-120 Hz, with system sensitivity up to 100 dB An included pole mount provides the option to mount the PRX418S on the JBL SS4-BK pole Large vent area for reduced distortion For optimal performance and sound coverage pair with JBL PRX412M or PRX415M speaker systems